Focus adjustment assemblies for projection television

Details Focus adjustment assemblies for projection television Focus adjustment assemblies for projection television

1992-11-23

1994-01-04

Ben, Loha

Optical: systems and elements

Lens

With support

359399, 359425, G02B 702

Patent

active

052765555

ABSTRACT:
Focus adjustment assemblies for projection television are provided. Locking systems are also provided which lock the barrels of the projection television in position immediately after focusing and which have a reduced risk of warping the barrels.

REFERENCES:
patent: 1970593 (1934-08-01), Bigelow
patent: 2051050 (1936-08-01), Langsner
patent: 2145437 (1939-01-01), Thomas
patent: 2285470 (1942-06-01), Stando et al.
patent: 2327859 (1943-08-01), Bolsey
patent: 2489578 (1949-11-01), Hillman
patent: 2843010 (1958-07-01), Wally et al.
patent: 2843013 (1958-07-01), Keuffel et al.
patent: 3051045 (1962-08-01), Misuraca
patent: 3191491 (1965-06-01), Pignone et al.
patent: 3538832 (1970-11-01), Koeber
patent: 5045930 (1991-09-01), Shinichi
Photograph of a current USPL lens system which shows the currently used focus adjustment.

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